#headerppointment .error-message {
  color: #fff;
  background: #ed3c0d;
  text-align: left;
  padding: 15px;
  font-weight: 600;
}
#headerppointment .error-message br + br {
  margin-top: 25px;
}
#headerppointment .sent-message {
  color: #fff;
  background: #18d26e;
  text-align: center;
  padding: 15px;
  font-weight: 600;
}
#headerppointment .loading {
  background: transparent;
  text-align: center;
  padding: 15px;
}
#headerppointment .loading:before {
  content: "";
  display: inline-block;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  margin: 0 10px -6px 0;
  border: 3px solid #18d26e;
  border-top-color: #eee;
  /*-webkit-animation: animate-loading 1s linear infinite;
  animation: animate-loading 1s linear infinite;*/
  animation: spinner 2s linear infinite;
}

@keyframes spinner {
   0% { transform: rotate(0deg); }
   100% { transform: rotate(360deg); }
}

::selection {
  background-color: #51ff3dd9; /* Your desired background color */
  color: #008004;           /* Your desired text color */
}